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Finding the Fourth Proportional to 272,305.50, 375,779.50 and 149,795.24

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Solution

The fourth proportional to 272,305.50, 375,779.50 and 149,795.24 is: 206,716.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,305.50 : 375,779.50 = 149,795.24 : x
  2. Step 2: Convert to fraction form
    272,305.50/375,779.50 = 149,795.24/x
  3. Step 3: Cross multiply
    272,305.50x = 375,779.50 × 149,795.24
  4. Step 4: Simplify right side
    272,305.50x = 56,289,978,136.19
  5. Step 5: Solve for x
    x = 56,289,978,136.19/272,305.50
  6. Step 6: Final answer
    x = 206,716.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.